HTTP Server Status 📣

HTTP Server Status TypeScript enumerators and default messages

This module provides a comprehensive representation of HTTP status codes categorized into different response types, as defined in the HTTP standard. Each category is implemented as an enumeration (enum) for type-safe usage in TypeScript. A unified ResponseStatus object is also exported, allowing easy access to all status codes.

Table of Contents

• Getting started
• API Reference
  • Information Response Status
  • Success Response Status
  • Redirection Response Status
  • Client Error Response Status
  • Server Error Response Status
• Development
  • Install depenendencies
  • Build the source code
  • ESLint
  • Jest
• Contributing
• Security
• Credits

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Getting started

Run the following command to start using http-server-status in your projects:

1npm i @alessiofrittoli/http-server-status

or using pnpm

1pnpm i @alessiofrittoli/http-server-status

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API Reference

InformationResponse Enum

Represents HTTP 1xx status codes, indicating informational responses.

Constants Overview

Constant	Value	Description
Continue	100	The client should continue the request or ignore the response if the request is already finished.
SwitchingProtocols	101	The server is switching to the Upgraded protocol.
Processing	102	Processing the request, no response is available yet.
EarlyHints	103	Start preloading resources while the server prepares a response.

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SuccessResponse Enum

Represents HTTP 2xx status codes, indicating successful requests.

Constants Overview

Constant	Value	Description
Ok	200	Ok
Created	201	The request succeeded, and a new resource was created as a result.
Accepted	202	The request has been received but not yet acted upon.
NonAuthoritative	203	The returned metadata is not exactly the same as is available from the origin server, but is collected from a local or a third-party copy.
NoContent	204	There is no content to send for this request, but the headers may be useful.
ResetContent	205	Reset the document which sent this request.
PartialsContent	206	The Range header is sent from the client to request only part of a resource.
MultiStatus	207	Conveys information about multiple resources, for situations where multiple status codes might be appropriate.
AlreadyReported	208	Avoid repeatedly enumerating the internal members of multiple bindings to the same collection.
ImUsed	226	The server has fulfilled a GET request for the resource, and the response is a representation of the result of one or more instance-manipulations applied to the current instance.

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RedirectionResponse Enum

Represents HTTP 3xx status codes, indicating redirection.

Constants Overview

Constant	Value	Description
MultipleChoices	300	The request has more than one possible response. The user agent or user should choose one of them.
MovedPermanently	301	The URL of the requested resource has been changed permanently. The new URL is given in the response.
Found	302	The URI of requested resource has been changed temporarily. Further changes in the URI might be made in the future. Therefore, this same URI should be used by the client in future requests.
SeeOther	303	Direct the client to get the requested resource at another URI with a GET request.
NotModified	304	The response has not been modified, so the client can continue to use the same cached version of the response.
TemporaryRedirect	307	Get the requested resource at another URI with same method that was used in the prior request.
PermanentRedirect	308	The resource is now permanently located at another URI, specified by the Location: HTTP Response header.

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ClientErrorResponse Enum

Represents HTTP 4xx status codes, indicating client errors.

Constants Overview

Constant	Value	Description
BadRequest	400	Cannot process the request due to something that is perceived to be a client error.
Unauthorized	401	You must be authenticated to get the requested response.
PaymentRequired	402	Payment required to access this content.
Forbidden	403	You do not have access rights to the content.
NotFound	404	The server can not find the requested resource.
MethodNotAllowed	405	HTTP method not supported by the target resource.
NotAcceptable	406	Cannot find, after performing server-driven content negotiation, any content that conforms to the criteria given by the user agent.
ProxyAuthenticationRequired	407	Authentication is needed to be done by a proxy.
RequestTimeout	408	The server would like to shut down this unused connection.
Conflict	409	The request conflicts with the current state of the server.
Gone	410	The requested content has been permanently deleted from server
LengthRequired	411	Server rejected the request because the Content-Length header field is not defined and the server requires it.
PreconditionFailed	412	The client has indicated preconditions in its headers which the server does not meet.
PayloadTooLarge	413	Request entity is larger than limits defined by server. The server might close the connection or return an Retry-After header field.
UriTooLong	414	The URI requested by the client is longer than the server is willing to interpret.
UnsupportedMediaType	415	The media format of the requested data is not supported by the server. Rejecting the request.
RangeNotSatisfiable	416	The range specified by the Range header field in the request cannot be fulfilled.
ExpectationFailed	417	The expectation indicated by the Expect request header field cannot be met by the server.
ImTeapot	418	The server refuses the attempt to brew coffee with a teapot.
MisdirectedRequest	421	The request was directed at a server that is not able to produce a response.
UnprocessableEntity	422	The request was well-formed but was unable to be followed due to semantic errors.
Locked	423	The resource that is being accessed is locked.
FailedDependency	424	The request failed due to failure of a previous request.
TooEarly	425	The server is unwilling to risk processing a request that might be replayed.
UpgradeRequired	426	The server refuses to perform the request using the current protocol but might be willing to do so after the client upgrades to a different protocol.
PreconditionRequired	428	The origin server requires the request to be conditional.
TooManyRequests	429	Too many requests in a given amount of time.
RequestHeaderFieldsTooLarge	431	The server is unwilling to process the request because its header fields are too large.
UnavailableForLegalReasons	451	The user agent requested a resource that cannot legally be provided.

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ServerErrorResponse Enum

Represents HTTP 5xx status codes, indicating server errors.

Constants Overview

Constant	Value	Description
InternalServerError	500	There has been an error on the server.
NotImplemented	501	The request method is not supported by the server and cannot be handled.
BadGateway	502	The server, while working as a gateway to get a response needed to handle the request, got an invalid response.
ServiceUnavailable	503	The server is not ready to handle the request.
GatewayTimeout	504	The server is acting as a gateway and cannot get a response in time.
HTTPVersionNotSupported	505	The HTTP version used in the request is not supported by the server.
VariantAlsoNegotiates	506	The chosen variant resource is configured to engage in transparent content negotiation itself, and is therefore not a proper end point in the negotiation process.
InsufficientStorage	507	The method could not be performed on the resource because the server is unable to store the representation needed to successfully complete the request.
LoopDetected	508	Infinite loop detected while processing the request.
NotExtended	510	Further extensions to the request are required for the server to fulfill it.
NetworkAuthenticationRequired	511	The client needs to authenticate to gain network access.

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Development

Install depenendencies

1npm install

or using pnpm

1pnpm i

Build the source code

Run the following command to test and build code for distribution.

1pnpm build

ESLint

warnings / errors check.

1pnpm lint

Jest

Run all the defined test suites by running the following:

1# Run tests and watch file changes.
2pnpm test:watch
3
4# Run tests in a CI environment.
5pnpm test:ci

• See package.json file scripts for more info.

Run tests with coverage.

An HTTP server is then started to serve coverage files from ./coverage folder.

⚠️ You may see a blank page the first time you run this command. Simply refresh the browser to see the updates.

1test:coverage:serve

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Contributing

Contributions are truly welcome!

Please refer to the Contributing Doc for more information on how to start contributing to this project.

Help keep this project up to date with GitHub Sponsor.

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Security

If you believe you have found a security vulnerability, we encourage you to responsibly disclose this and NOT open a public issue. We will investigate all legitimate reports. Email security@alessiofrittoli.it to disclose any security vulnerabilities.

Made with ☕

Alessio Frittoli https://alessiofrittoli.it | info@alessiofrittoli.it